Images 4X 2X

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4x 2x. TG (2x + пи/4 ) = -1. TG X/2+Pi/4. -TG(X/2 + пи)<1. TG(P/4-X/2)=-1.
TG (2x + пи/4 ) = -1. TG X/2+Pi/4. -TG(X/2 + пи)<1. TG(P/4-X/2)=-1.

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